|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution | | Hong Guo
; Idit Zehavi
; Zheng Zheng
; David H. Weinberg
; Andreas A. Berlind
; Michael Blanton
; Yanmei Chen
; Daniel J. Eisenstein
; Shirley Ho
; Eyal Kazin
; Marc Manera
; Claudia Maraston
; Cameron K. McBride
; Sebastian E. Nuza
; Nikhil Padmanabhan
; John K. Parejko
; Will J. Percival
; Ashley J. Ross
; Nicholas P. Ross
; Lado Samushia
; Ariel G. Sanchez
; David J. Schlegel
; Donald P. Schneider
; Ramin A. Skibba
; Molly E. C. Swanson
; Jeremy L. Tinker
; Rita Tojeiro
; David A. Wake
; Martin White
; Neta A. Bahcall
; Dmitry Bizyaev
; Howard Brewington
; Kevin Bundy
; Luiz N. A. da Costa
; Garrett Ebelke
; Viktor Malanushenko
; Elena Malanushenko
; Daniel Oravetz
; Graziano Rossi
; Audrey Simmons
; Stephanie Snedden
; Alina Streblyanska
; Daniel Thomas
; | | Date: |
6 Dec 2012 | | Abstract: | We measure the luminosity and color dependence and the redshift evolution of
galaxy clustering in the Sloan Digital Sky Survey-III Baryon Oscillation
Spectroscopic Survey Ninth Data Release. We focus on the projected two-point
correlation function (2PCF) of subsets of its CMASS sample, which includes
about 260,000 galaxies over ~3,300 sq. deg in the redshift range 0.43<z<0.7. To
minimize the selection effect on galaxy clustering, we construct well-defined
luminosity and color subsamples by carefully accounting for the CMASS galaxy
selection cuts. The 2PCF of the whole CMASS sample, if approximated by a
power-law, has a correlation length of r_0=7.93pm0.06Mpc/h and an index of
gamma=1.85pm0.01. Clear dependences on galaxy luminosity and color are found
for the projected 2PCF in all redshift bins, with more luminous and redder
galaxies generally exhibiting stronger clustering and steeper 2PCF. The color
dependence is also clearly seen for galaxies within the red sequence,
consistent with the behavior of SDSS-II main sample galaxies at lower
redshifts. At a given luminosity (k+e corrected), no significant evolution of
the projected 2PCFs with redshift is detected for red sequence galaxies. We
also construct galaxy samples of fixed number density at different redshifts,
using redshift-dependent magnitude thresholds. The clustering of these galaxies
in the CMASS redshift range is found to be consistent with that predicted by
passive evolution. Our measurements of the luminosity and color dependence and
redshift evolution of galaxy clustering will allow for detailed modeling of the
relation between galaxies and dark matter halos and new constraints on galaxy
formation and evolution. | | Source: | arXiv, 1212.1211 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER